Czechoslovakia
Republic gold "Death of Charles IV - 600th Anniversary" Medallic Ducat 1978 MS63 NGC, KM-XM28.
https://coins.ha.com/itm/czechoslovakia/czechoslovakia-republic-gold-death-of-charles-iv-600th-anniversary-medallic-ducat-1978-ms63-ngc-/a/65165-98120.s?type=DA-DMC-CoinArchives-WorldCoins-65165-05282023
HID02906262019
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